<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
  </head>
  <body>
    <div id="app">
      <ul>
        <li v-for="user in users">{{user.name}}</li>
      </ul>
    </div>
    <script src="my-vue.js"></script>
    <script>
        var vm = new Vue({
            el:'#app',
            data:{
              users:[
                {id:1,name:'zhangsan'},
                {id:2,name:'lisi'}
              ]
            }
        });
        vm.users.push({id:3,name:'wangwu'});
        vm.users[0].name = 'AAA';
        vm.users[1].name = 'BBB';
        console.log(vm.users)
        vm.users[2].name = 'CCC';
    </script>
  </body>
</html>